The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 20, 2018
Filed:
Jan. 12, 2018
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Shusaku Goto, Kyoto, JP;
Abstract
A third power supply circuit subjects a reference voltage to DC-DC conversion to generate a power supply voltage common to a second driver circuit for driving a second switching device and a fourth driver circuit for driving a fourth switching device. Wirings from a substrate on which the third power supply circuit is provided to a substrate on which the second driver circuit and the fourth driver circuit are provided are used by the third power supply circuit to supply the power supply voltage commonly to the second driver circuit and the fourth driver circuit. A first impedance device, a second impedance device, a third impedance device, and a fourth impedance device are provided in a substrate on which the second driver circuit and the fourth driver circuit are provided.